Structure 3338960 · Jefferson County, NY

RTE 971v over Black River

Carries RTE 971v over Black River, 1 Mi NE Of Black River.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT418 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 6/9 · sets the rating

418 ft end to end, longest span 156 ft: about 6 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built1942rebuilt 2013
Length418.0 ft127.4 m
Daily traffic2,599counted 2015
Last inspectedOctober 2023every 24 months

Location

StateNew York
CountyJefferson
Location1 Mi NE Of Black River
CarriesRTE 971v
CrossesBlack River
Coordinates44.02332, -75.76588

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length418.0 ft (127.4 m)
Max Span155.8 ft (47.5 m)
Deck Width42.0 ft (12.8 m)
Deck Area1630.7 sq m
Main Spans3
Year Built1942 (reconstructed 2013)

Traffic

Avg Daily Traffic2,599 (2015)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000003338960

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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